Home / 91,304.42-126,080.25-57,371.70

Finding the Fourth Proportional to 91,304.42, 126,080.25 and 57,371.70

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Solution

The fourth proportional to 91,304.42, 126,080.25 and 57,371.70 is: 79,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,304.42 : 126,080.25 = 57,371.70 : x
  2. Step 2: Convert to fraction form
    91,304.42/126,080.25 = 57,371.70/x
  3. Step 3: Cross multiply
    91,304.42x = 126,080.25 × 57,371.70
  4. Step 4: Simplify right side
    91,304.42x = 7,233,438,278.93
  5. Step 5: Solve for x
    x = 7,233,438,278.93/91,304.42
  6. Step 6: Final answer
    x = 79,223.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.